1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // UNSUPPORTED: c++98, c++03, c++11
10 
11 // <experimental/functional>
12 //
13 //  has to include <functional>
14 
15 #include <experimental/functional>
16 
17 int main(int, char**)
18 {
19   std::function<int(int)> x;
20 
21   return 0;
22 }
23